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(11)

EP 2 510 070 A1

(12)

(43) Date of publication: 17.10.2012 Bulletin 2012/42 (21) Application number: 10793019.0 (22) Date of filing: 08.12.2010

(51) International Patent Classification (IPC):  C09K 8/42(2006.01) C04B 24/26(2006.01) C04B 40/06(2006.01) C09K 8/467(2006.01) C04B 28/02(2006.01) E21B 43/04(2006.01) (86) International application number: PCT/GB2010/002246 (87) International publication number: WO 2011/070323 (16.06.2011 Gazette 2011/24)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 08.12.2009 US 633507 (71) Applicant: Halliburton Energy Services, Inc. Houston, TX 77072 (US)	(72) Inventors: SARAP, Girish Dinkar Pune 411 038 Maharashtra (IN) PATIL, Sandip Prabhakar Pune 411 027 Maharashtra (IN) SENAPATI, Dibyadarshani Pune 411 008 Maharashtra (IN) TARAFDAR, Abhijit Pune 411 015 Maharashtra (IN) (74) Representative: Cottrill, Emily Elizabeth Helen  A.A. Thornton & Co. 235 High Holborn London WC1V 7LE London WC1V 7LE (GB)